1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_FORMAT_MACROS_H_ 6 #define BASE_FORMAT_MACROS_H_ 7 #pragma once 8 9 // This file defines the format macros for some integer types. 10 11 // To print a 64-bit value in a portable way: 12 // int64_t value; 13 // printf("xyz:%" PRId64, value); 14 // The "d" in the macro corresponds to %d; you can also use PRIu64 etc. 15 // 16 // For wide strings, prepend "Wide" to the macro: 17 // int64_t value; 18 // StringPrintf(L"xyz: %" WidePRId64, value); 19 // 20 // To print a size_t value in a portable way: 21 // size_t size; 22 // printf("xyz: %" PRIuS, size); 23 // The "u" in the macro corresponds to %u, and S is for "size". 24 25 #include "build/build_config.h" 26 27 #if defined(OS_POSIX) 28 29 #if (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && !defined(PRId64) 30 #error "inttypes.h has already been included before this header file, but " 31 #error "without __STDC_FORMAT_MACROS defined." 32 #endif 33 34 #if !defined(__STDC_FORMAT_MACROS) 35 #define __STDC_FORMAT_MACROS 36 #endif 37 38 #include <inttypes.h> 39 40 // GCC will concatenate wide and narrow strings correctly, so nothing needs to 41 // be done here. 42 #define WidePRId64 PRId64 43 #define WidePRIu64 PRIu64 44 #define WidePRIx64 PRIx64 45 46 #if !defined(PRIuS) 47 #define PRIuS "zu" 48 #endif 49 50 #else // OS_WIN 51 52 #if !defined(PRId64) 53 #define PRId64 "I64d" 54 #endif 55 56 #if !defined(PRIu64) 57 #define PRIu64 "I64u" 58 #endif 59 60 #if !defined(PRIx64) 61 #define PRIx64 "I64x" 62 #endif 63 64 #define WidePRId64 L"I64d" 65 #define WidePRIu64 L"I64u" 66 #define WidePRIx64 L"I64x" 67 68 #if !defined(PRIuS) 69 #define PRIuS "Iu" 70 #endif 71 72 #endif 73 74 #endif // BASE_FORMAT_MACROS_H_ 75